On the influence of modelling choices on combustion in narrow channels

Kang, Xin, Gollan, Rowan J., Jacobs, Peter A. and Veeraragavan, Ananthanarayanan (2017) On the influence of modelling choices on combustion in narrow channels. Computers and Fluids, 144 117-136. doi:10.1016/j.compfluid.2016.11.017

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Author Kang, Xin
Gollan, Rowan J.
Jacobs, Peter A.
Veeraragavan, Ananthanarayanan
Title On the influence of modelling choices on combustion in narrow channels
Journal name Computers and Fluids   Check publisher's open access policy
ISSN 0045-7930
Publication date 2017-02-02
Year available 2016
Sub-type Article (original research)
DOI 10.1016/j.compfluid.2016.11.017
Open Access Status File (Author Post-print)
Volume 144
Start page 117
End page 136
Total pages 20
Place of publication Kidlington, Oxford United Kingdom
Publisher Pergamon Press
Language eng
Subject 1700 Computer Science
2200 Engineering
Abstract This paper examines the effect of modelling choices on the numerical simulation of premixed methane/air combustion in narrow channels. Knowledge on standard and well-accepted numerical methods in literature are collected in a cohesive document. The less well-established modelling choices have been thoroughly evaluated and discussed. A systematic method of computing the grid convergence index (GCI) has been presented for refining the computational grid. Two types of inflow boundary conditions have been tested and compared in terms of their wave-damping characteristics. The effect of different reaction schemes on simulation results have been examined and an appropriate mechanism (DRM-19) has been selected. Various types of ignition strategies to initiate the flame have been tested and compared. The transient ignition process which has not been discussed extensively in existing literature has been quantitatively described in this paper.
Keyword Micro/mesoscale combustion
Numerical modelling
Boundary conditions
Grid convergence index
Ignition methods
Q-Index Code C1
Q-Index Status Provisional Code
Grant ID LE120100181
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
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Created: Sat, 03 Dec 2016, 03:42:54 EST by Anand Veeraragavan on behalf of School of Mechanical and Mining Engineering